Footwear sole



FIG. 1 is a perspective view of a footwear sole;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is another bottom perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken line showings in the figures are for the purpose of illustrating an environment only and form no part of the claimed design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 